In vehicles:

• HMM-165 is medium helicopter squadron in the United States Marine Corps with the nickname White Knights
• Scaled Composites White Knight, the aircraft used to carry and launch Scaled Composites SpaceShipOne
• Scaled Composites White Knight Two, the technological successor of the first

In music and entertainment:

• Knight (chess), a chess piece
• White Knight Chronicles, a video game under development by Level-5 for the PlayStation 3
• "The White Knight" (Cledus Maggard song), a 1976 hit single by Cledus Maggard
• Suzaku Kururugi, also known as the White Knight, a character in the Anime series Code Geass

In literature:

• The character in Through the Looking Glass which resembles the chess-piece
• White Knight, is Lewis Carroll as referred to by himself
• The White Knight (book), a 1952 biography of Lewis Carroll

In other uses:

• A generic term for a Knight-errant, Paladin, or "Knight in shining armor"
• White knight (business), a corporation, private company, or person that intends to help a firm
• White Knights of the Ku Klux Klan, one of the most violent and militant branches of the Ku Klux Klan
• White Knight (chocolate), an Australian mint flavored chocolate candy bar
• The White Knight Fitzgibbon, an extinct hereditary Anglo-Norman title of nobility used in Ireland
• White Knight (software), a terminal program for Macintosh computers

See also

• Black Knight
• White horse